ΔE 29.2, loose: different enough that you should pick on purpose. Exile Blue is a little darker, cooler than Phoenician Purple.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 29). Exile Blue is a little darker, cooler than Phoenician Purple.
The same difference applies the other way round: Phoenician Purple is a little lighter, warmer.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Phoenician Purple on the colour wheel See Exile Blue on the colour wheel
All matches: Phoenician Purple equivalents · Exile Blue equivalents